Extending the Time for Thrombolysis in Emergency Neurological Deficits

Brief description of study

The primary hypothesis being tested in this trial is that ischaemic stroke patients selected
with significant penumbral mismatch (measured by MRI criteria) at 3 - 9 hours post onset of
stroke will have improved clinical outcomes when given intravenous tissue plasminogen
activator (tPA) compared to placebo.